package com.example.community.controller;

import com.example.community.entity.User;
import com.example.community.service.UserService;
import com.example.community.util.CommunityConstant;
import com.google.code.kaptcha.Producer;
import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.*;

import javax.imageio.ImageIO;
import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import javax.xml.ws.soap.Addressing;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.io.OutputStream;
import java.util.Map;

@Controller
public class LoginController implements CommunityConstant {
    private static final Logger logger = LoggerFactory.getLogger(LoginController.class);

    @Autowired
    private UserService userService;
    @Autowired
    private Producer kaptchaProducer;

    @Value("${server.servlet.context-path}")
    private String contextPath;


    @RequestMapping(path = "/register", method = RequestMethod.GET)
    public String getRegisterPage() {
        return "/site/register";
    }

    @RequestMapping(path = "/login", method = RequestMethod.GET)
    public String getLoginPage() {
        return "/site/login";
    }

    @RequestMapping(path = "/register", method = RequestMethod.POST)
    public String register(Model model, User user) {
        Map<String, Object> map = userService.register(user);
        if (map == null || map.isEmpty()) {
            model.addAttribute("msg", "注册成功,我们已经向您的邮箱发送了一封激活邮件,请尽快激活!");
            model.addAttribute("target", "/index");
            return "/site/operate-result";
        } else {
            model.addAttribute("usernameMsg", map.get("usernameMsg"));
            model.addAttribute("passwordMsg", map.get("passwordMsg"));
            model.addAttribute("emailMsg", map.get("emailMsg"));
            return "/site/register";
        }

    }

    @RequestMapping(path = "/activation/{userId}/{code}",method = RequestMethod.GET)
    public String activation(Model model, @PathVariable("userId")int userId,@PathVariable("code")String code){
        int result=userService.activation(userId, code);
        if (result == ACTIVATION_SUCCESS) {
            model.addAttribute("msg","激活成功,您的账号已经可以正常使用了!");
            model.addAttribute("target","/login");
        }else if (result==ACTIVATION_REPEAT){
            model.addAttribute("msg","无效操作,该账号已经激活过了!");
            model.addAttribute("target","/index");

        }else {
            model.addAttribute("msg","激活失败,您提供的激活码不正确!");
            model.addAttribute("target","/index");
        }
        return "/site/operate-result";
    }


    @RequestMapping(path = "/kaptcha",method = RequestMethod.GET)
    public  void  getKaptcha(HttpServletResponse response, HttpSession session){
        //生成验证码
        String text = kaptchaProducer.createText();
        BufferedImage image=kaptchaProducer.createImage(text);

        //将验证码存入session
        session.setAttribute("kaptcha",text);
        //将突图片输出给浏览器
        response.setContentType("image/png");
        try {
            OutputStream os=response.getOutputStream();
            ImageIO.write(image,"png",os);
        } catch (IOException e) {
            logger.error("响应验证码失败:"+e.getMessage());
        }
    }
    @RequestMapping(path = "/login",method = RequestMethod.POST)
    public String login(String username,String password,String code,boolean rememberme,Model model,HttpSession session,HttpServletResponse response){
        //检查验证码
        String kaptcha=(String) session.getAttribute("kaptcha");
        if (StringUtils.isBlank(kaptcha)||StringUtils.isBlank(code)||!kaptcha.equalsIgnoreCase(code)){
            model.addAttribute("codeMsg","验证码不正确!");
            return "/site/login";
        }

        //检查账号,密码
        int expiredSeconds=rememberme?REMEMBER_EXPIRED_SECONDS:DEFAULT_EXPIRED_SECONDS;
        Map<String,Object> map=userService.login(username,password,expiredSeconds);

        if(map.containsKey("ticket")){
            Cookie cookie=new Cookie("ticket",map.get("ticket").toString());
            cookie.setPath(contextPath);
            cookie.setMaxAge(expiredSeconds);
            response.addCookie(cookie);
            return "redirect:/index";
        }else {
            model.addAttribute("usernameMsg",map.get("usernameMsg"));

            model.addAttribute("passwordMsg",map.get("passwordMsg"));
            return "/site/login";
        }

    }

    @RequestMapping(path = "/logout",method = RequestMethod.GET)
    public String logout(@CookieValue("ticket") String ticket){
        userService.logout(ticket);
        return "redirect:/login";
    }


}
